UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B+N+H4bPhQGGqCwejZlVvRxWhwMZqe4DHdpTA6UFJtM=' 
WHERE 
  key_id = '6818427213874b6fbc6cc352f323e4c2490f6036b794352c099cc9c5d2e3a073' 
  AND (
    token = 'B+N+H4bPhQGGqCwejZlVvRxWhwMZqe4DHdpTA6UFJtM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )